Fuel-economizer device.



H. G. TUCKER. FUEL AECONOIVIIZFR DEVICE. APPLICATION FILED SEPT. 19,1913.

Patented Dec. 29, 1914.

2 SHEETS-SHEET l.

H. G. TUCKER. EDEL EGONOMIZEE DEVICE.

APPLICATION FILED SEPT. 19, 1913.

Patented Dec. 29, 1.914.

2 SHEETS-SHEET 2.

' Illinois, have invented certain new and use# 1 STATES-rum @wma HARRYG. TUCKER, or cHICAGo,""ILL-I1vo1s, AssIGNonmo yiva'rIolvJiL FUEL SAVER'coiaPoItATIoIv, or CHICAGO, ILLINo l Appnauo fue@ september 19 To allwhom t may concern: -1

.Be it knownthat I, HARRY Gr.' TUCKER, u citizen of the United States,residing at ChiA cago, in the county ofCo'ok and State of fulImprovements in Fuel-Econmizer Del vices, of which the following isaspecification. y v@ne of the objects of my invention is to provideadevice, to be placed within the breeching, iue or stove pipe of afurnace or stove, whereby to properly f pre-heat Vand then admit therequired quantity of oxygen, to the fuel being consumed, to promotecombustion and to hold in check, within ythe fur nace, the resultingheat fromsuch combustion, to thereby increase the eiiicien'cy of fuelconsumption.

Another object of my invention is to provide a very simple eiiicient anddurabledevice, having no moving parts, adapted tol be placed within thebreeching, or smoke iiue, at one vside of the central axis thereof, soas to conserve some of the heat from the escaping hot gases vofcombustion whereby to heat the ingoing air.

Another object of my invention'is to pro vide a means, for admitting theair within the smoke lueor pipe, that kwill prevent a violent inrush ofair, to thereby impede the draft, and which will divide the air into aseries of relatively small streams and there* by distribute it evenly inthegases, into which it is to be entrained.

Other andfurther objects of my` invention will become readily apparent,`to persons skilled in the art, from a consideration of the followingdescription when taken in conjunction with the drawings wherein Figure 1shows a furnace, in which my invention is lapplied/ Fig. 2 is anenlarged plan view of the device, showing a part in section. Fig. 3 is asection taken on line 3-3 of Fig. 2. Fig. 4 is a transverse sectiontaken on line 4-1 of Fig. 3. Fig. 5 is a transverse section taken online 5-5 of Fig. 3.

In all the views the same reference characters are employed to indicatesimilar a; parts.

rIhe device 10, as a whole, is divided into substantially twolongitudinal members, or lungs 11 and 12, as shown, for the purpose ofexposing considerable surface to the heat- -rUEL-EcoNoMIzmt DEvIcE.

Specification ef Letters Patent. i', l Patented De@ movement ofthe airAparticles, as

, able that the air,

-the openings, 14 and is provided with i surface of the flue 28, andthat Isa coRroItA'rIoN or ILLINOIS.`

, 1913. Serial No. 790.683. j

ing effect of thesurroundiiig gases and fur!x thermoreto preventrotation or otherlrapid they are It is very `desirs within the device,be as quiescent as possible in order that its passage through thesurrounding gases may be more completely and, effectively accom plished.I therefore extend the wall lof thev device, as at 13, down in such awayas to form a substantial partition between. the opposite air inlets 14(yand 15 so that the streams of air coming through these inlets, may notimpinge upon 'each other, but may be deflected by the wall 164 into therecess 17 and subsequently caused to pass through the narrow throat 18into the main Vportion of the respective chamber or lung, as 1.1 or 12.As the gases pass through these portions of the device, they are broughtinto contact with the interior surface of the outer walls 13 and againstthewall 19 thatsurrounds the opening 20. The forward end Wall, orclosure, of the deviceis tapered, as at 21, and isprovidedwitha seriesof rated openings 22, for ingress of the airinto the heated gases ofcombustion. Each of 15, for admittingthe 4air into the device terminateseXteriorly of admitted into the device.

sepap the flue, in rosettes 23 and--24, each of which aperfor-ate,separablecovr, having a series ofseparated openings 25. Thethroat 26, leading from` each of the openings 14 and 15, to therespective rosettes 23 and 24, is provided with an opening 27 'whichliesin a plane alongthe lowersurface of the stove pipe or flue 28, whenthe device is in place, so that air may also enter these openings,27-27. The air that passes through these openings has been pre-heated,to some extent, by contact with the lower it does pass into theseopenings, as well as the openings 25 provided in the rosettes, isevidenced bv the fact that a light fabric or paper is held in front ofthese openings, it will be sucked into them as the result of the suctionproduced by the ingoing air.

-The caps of the rosettes, 23 and 24:, are held in place on the mainbody portion 29 of the structure, by screw bolts 30 and the parts 29 areheld in place, on the main structure, by bolts 31.V These bolts alsoserve to vassist in holding the device in proper place through the, ue28,. and serve to assist in .i .hldi'ng the device in pplace therein.

' The section of the flue or breaching 28 containing the device, ispreferably -enlai-ged, and when so formed is reduced at i ,i eachendas,at 34E-and 35, to its normal size,

so that the device need not have any choking effectt on thefout'geinggasesyand by this means interfere with the draft.

' Carbonc'oXid gas, arising from combustion 'of' the' fuel, 'passes' out'from the furnace tfol thei stack 'orchimney through a smoke line,orbreechingt If the flue, or breeching, i' 115 occupies vLax horizontalposition the hotter [gasesiwill'occupy the upper portion of suchconduit, :butthe conduit will be substaniltiaillyiilledwith such gases.Now if air be :permitted'toenter the flue,l in the proper manner, andbel properly distributed in the flower portieri of the flue, or in oneside *thereof, it' will bex rapidly drawn into the` i midst of theescaping gases and by the proc- When air enters the device it is movingi npiei 'at this patent may be obtained for 1 essjesfof." diffusion andtranspiration of "nace, tothe point of its attraction, or intogases,`"it' will be carried back into the furthe-hottest@ path, whichis. rthe mostY intensely heated combustion point, and the oxygen of fthe airvlill intensify "theheat generated, I so AfThat v'air does passinto the device in suiand 'promote `the combustion o f the fuel.

"client quantities to promote combustion is evidenced bythe fact thatall of the doors -1 1" 'below thelire, of an'ordinary furnace, may

" i" oxygen, willbe supplied through my comlbusti'i'npromoting device toproduce inf tense4 combustion of the fuel until all of the "fuelcontained in the furnace has beenthus lie-completely closed, andsufficient air, or

economically consumed.

slo'wlyuud is not permitted to rush into the 'hotv gases while it is inrapid motion and I 'create 'a draft, in which event it would be l @therbolts 32, ypass The correct operation ofthe device causes `be thereafterprojected into the heated vided on a longitudinal, median plane into vecents each, by addressing the Commissioner of atentl, Washington, I). C.

carried out with the escaping hot gases.

the air to assume a quiescent state, and to gases,-comin0r in theopposite directiontoward the filrnace, through series of apertures,thereby dividing the ingoing oxygen into a series of streams, presentinglarge surfaces for contact with the gases and causing the oxygen to passthrough the gases in parallel paths with the moving gases but in aydirection opposite to that taken by the gases, to the point ofattraction, which is the hottest part of the furnace, or wherecombustion is most intense. As the oxygen, or air, passes from point topoint its progress is through a path of constantly increasingtemperature, and it is the increasing temperature that gives directionto the inlowing air.

Having described my invention, what I claim is l A devicel of thecharacter described, comprising `a hollow structure substantially ditwochambers; each said chamber having an opening at its rear endregistering with openings in the Hue in whichsaid device is to becontained, a perforate inlet cap covering each of saidvopenings, a pairof bolts for securing eac-h cap to the flue, said bolts taking throughopenings in the said structure for holding the same in position relativeto the holes in the flue and the inlet caps,and a tapered forward endwall provided with a plurality of apertures common to both chambers, toeject air'into the flue in which the device is mounted.

In testimony whereof I hereunto set my hand in the presence of twowitnesses.

HARRY G. TUCKER. In the presence ofl Fonnn BAIN, l. :.MARYF. ALIEN..

